article: Have you heard of EXO? EXO is a Chinese-South Korean boy band with 12 people. They are in two teams: EXO-M and EXO-K. There's even a "competition" between the two teams. "I will not call it a competition. It's always in good fun," said Sehun of EXO-K.
  Here comes the new superstar! His name is Austin Mahone. The 18-year-old is a pop singer in the US. His success story is just like that of Justin Bieber. Last month Mahone's new album The Secret came out. Maybe it's a good chance for us to know more about him and his music.
  Forget about Super Junior. We now have TFBOYS. TFBOYS is a popular Chinese boy band made up of three members. They are Wang Junkai, 14, Wang Yuan, 13, and Yi Yangqianxi, 13. The boys are all junior middle school students. Their songs are full of positive energy  . In their latest album, they call on teenagers not to be afraid of dreaming big.
question: If you listen to TFBOY's songs, you can feel a lot of   _  .
options: trouble in study tiredness of life positive energy anger of society